Advanced Marine Safety with Automatic Water Activation

The ACR Firefly PRO Waterbug is a high-performance emergency strobe light designed for marine environments. With its automatic water activation feature, this SOLAS-approved device ensures immediate illumination upon submersion, providing a crucial lifeline in emergency situations. Equipped with four operational modes, users can select between armed mode for automatic activation, an ultra-bright strobe for visibility, an SOS signal for distress alerts, and a steady-on mode for close-range recovery operations.

Designed for maximum reliability, the Firefly PRO Waterbug delivers an impressive 360-degree beam of cool white LED light, enhancing visibility over 3.5 miles. Its advanced microprocessor and energy-efficient electronics enable continuous operation for over 56 hours—far exceeding industry regulations and doubling the performance of competing models. The LED’s cool white hue eliminates yellow tinting, further improving long-range visibility in challenging conditions.

Durable and Efficient Technical Specifications

• Operation: Manual ON/OFF switch with automatic water activation
• Waterproof Rating: Factory tested to depths of up to 33 feet (10 meters)
• Light Source: Cool white LED
• Strobe Intensity: Minimum 26.8 candela
• Visibility Range: Over 3.2 miles
• Flash Rate: 60 pulses per minute (±)
• Battery Life: Minimum 56 hours of continuous operation
• Certifications: Pending approval for SOLAS, USCG, IMO LSA, and CE

Compact and Lightweight Design

• Dimensions: 4.4 x 2.2 x 1.2 inches (11.7 x 5.7 x 2.8 cm)
• Weight: 2.39 oz (68 g) without batteries

Key Features at a Glance

• Automatic water activation for immediate distress signaling
• Ultra-bright cool white LED for superior visibility over 3.5 miles
• Four operational modes, including strobe, SOS, and steady-on for recovery
• Energy-efficient electronics providing over 56 hours of continuous operation
• Waterproof construction, tested to depths of 33 feet
• Compact and lightweight design for easy portability

Available Variations

• 3970.4 - Strobe Type PRO SOLAS: Designed for professional-grade marine safety applications
• 3971.4 - Strobe Type PRO Waterbug: Equipped with water activation for automatic emergency signaling

Built for the demands of marine professionals and recreational boaters alike, the ACR Firefly PRO Waterbug is a reliable safety companion designed to enhance survival and rescue efforts in critical situations.